<template>
  <div>
    <!--   登录表单   -->
    <el-form :model="ruleForm" ref="ruleForm" :rules="rules" class="loginContainer">
      <h3 class="loginTitle">系统登录</h3>
      <!--用户名输入框-->
      <el-form-item prop="username">
        <el-input type="text" v-model="ruleForm.username" autocomplete="off" placeholder="请输入姓名"></el-input>
      </el-form-item>
      <!--密码输入框 -->
      <el-form-item prop="password">
        <el-input type="password" v-model="ruleForm.password" autocomplete="off" placeholder="请输入密码"></el-input>
      </el-form-item>
      <!--验证码-->
      <el-form-item prop="code">
        <el-input size="normal" type="text" v-model="ruleForm.code"
                  auto-complete="false"
                  placeholder="点击图片更换验证码" style="width:250px;margin-right: 5px"></el-input>
        <img :src="captchaUrl" @click="updateCaptcha"/>
      </el-form-item>
      <!--登录按钮-->
      <!--<el-checkbox class="loginRemember" v-model="checked">记住我</el-checkbox>-->
      <el-button type="primary" style="width: 100%" @click="submitLogin">登录</el-button>
    </el-form>
  </div>
</template>

<script>
import {postRequest} from "../utils/api";

export default {
  name: "Login",
  data() {
    return {
      captchaUrl: '/captcha?time=' + new Date(),
      ruleForm: {
        username: 'admin',
        password: '123',
        code: ''
      },
      checked: true,
      rules: {
        username: [{
          required: true, message: '请输入用户名', trigger:
              'blur'
        }],
        password: [{
          required: true, message: '请输入密码', trigger:
              'blur'
        }],
        code: [{
          required: true, message: '请输入验证码', trigger:
              'blur'
        }]
      }
    }
  },
  methods: {
    //登录
    submitLogin() {
      this.$refs.ruleForm.validate((valid) => {
        if (valid) {
          // 请求后端login接口
          postRequest('/login', this.ruleForm).then(resp => {
            // 判断resp响应消息是否有值
            if (resp) {
              // alert(JSON.stringify(resp));  // 弹出响应消息
              const tokenHead = resp.object.tokenHead;  // 响应消息中获取 tokenHead
              const token = resp.object.token;  // 响应消息中获取token

              const tokenStr = tokenHead + token;
              console.log(tokenStr);
              // 将响应的用户token存储到sessionStorage，需要在请求拦截器中获取
              window.sessionStorage.setItem('tokenStr', tokenStr);

              //清空菜单
              //this.$store.commit('initRoutes', []);

              //页面跳转到首页home
              let path = this.$route.query.redirect;
              this.$router.replace((path == '/' || path == undefined) ? '/home' : path)
            }
          })
        } else {
          this.$message.error('请输入所有字段');
          return false;
        }
      })
    },
    // 刷新验证码
    updateCaptcha() {
      //验证码
      this.captchaUrl = '/captcha?time=' + new Date();
    }
  }
}
</script>

<style>
  .loginContainer {
    border-radius: 15px;
    background-clip: padding-box;
    margin: 180px auto;
    width: 350px;
    padding: 15px 35px 15px 35px;
    background: #fff;
    border: 1px solid #eaeaea;
    box-shadow: 0 0 25px #cac6c6;
  }

  .loginTitle {
    margin: 0 auto 40px auto;
    text-align: center;
    color: #505458;
  }

  /*.loginRemember {
    text-align: left;
    margin: 0px 0px 15px 0px;
  }*/

  .el-form-item__content {
    display: flex;
    align-items: center;
  }
</style>